In response to, "How did I find the polyp?"
My last gastro noted it on two scopes. Then I changed my gastro. I had been having a lot of trouble emptying the pouch and she did a scope. She said she thought the polyp was blocking stool and also said it was black and red and gnarly looking (not her word.) I still don't know if that is the issue because this was a hard surgery. The polyp was right where my pouch was connected and things are taking a while to heal.
I hope you find your solution. If nothing, we become pretty good problem solvers and learn how to advocate.